Golang MD5 encryption and MD5 salt value encryption

1.MD5 encryption

1）MD5 package ："crypto/md5"

2） Realization

func genMd5(code string) string{
	//c1 := md5.Sum([]byte(code)) // return [16]byte Array 

	Md5 := md5.New()
	_, _ = io.WriteString(Md5, code)
	return hex.EncodeToString(Md5.Sum(nil))
}

2. MD5 Salt value encryption

  We can use github A library written by others ：https://github.com/anaskhan96/go-password-encoder

1） Import package :

go get github.com/anaskhan96/go-password-encoder

2） Specific usage ：

package main

import (
	"crypto/md5"
	"fmt"
	"github.com/anaskhan96/go-password-encoder"
)

func main() {
	//  Mode one ： Use default options 
	salt, encodedPwd := password.Encode("generic password", nil)
	check := password.Verify("generic password", salt, encodedPwd, nil)
	fmt.Println(check) // true

	//  Mode two ： Use custom options 
	options := &password.Options{10, 10000, 50, md5.New}
	salt, encodedPwd = password.Encode("generic password", options)
	check = password.Verify("generic password", salt, encodedPwd, options)
	fmt.Println(check) // true
}

The Options Structure is used to enable custom options ： 

type Options struct {
	SaltLen      int
	Iterations   int
	KeyLen       int
	HashFunction func() hash.Hash
}

• SaltLen： User generated length , Default 256
• Iterations： PBKDF2 The number of iterations in the function , Default 10000
• KeyLen：BKDF2 Length of encoding key in function , Default 512
• HashFunction： Hash algorithm used , Default sha512